CVE-2026-50054

highpriority · track · 0EPSS 0.002 · 6 %ileDE
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.17% (6th) EPSS
CVSS 7.1 · high
Is it mine?
1 products
Check your exposure
Who says so?
1 sources
cert_bund

EPSS · scored 2026-10-27

An authorization flaw in Zimbra Collaboration Suite’s GrantRightsRequest allows an attacker with access to an authenticated account to grant another local account the loginAs right, creating persistent mailbox access and mail-sending authority that survives password changes and session expiry.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nsecondary · cve@rapid7.comexploitability 2.8 · impact 4.2
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269US
03

affected products (1)

Products and version ranges known to be affected.

04

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-2429Synacor Zimbra: Mehrere SchwachstellenDeutsch2026-07-20csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Synacor Zimbra ausnutzen, um beliebigen Programmcode auszuführen, Cross-Site-Scripting-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen und unbefugte Aktionen durchzuführen.

05

sources

Which sources assert this record, and when.

cert_bundNVDCVE.orgMITRE
published 2026-10-08modified 2026-10-08
06

references (1) nvd

External citations — patches, advisories, analysis.

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